CHAPTER 12 — Shift Instructions and Logic Instructions

It often happens that a bit pattern must be shifted several positions left or right. The instructions that do this are the shift instructions.

Chapter Topics:

Logical shift instructions (sll and srl).
No-op as a shift instruction.
Bitwise logic instructions (or, and, xor, nor).
NOT as a NOR operation.
MOVE as an OR operation.
Example program: instruction assembly.

QUESTION 1:

(Review:) If a bit pattern that represents an integer N using unsigned binary (say 0110 0001) is shifted left by one bit (to 1100 0010) what integer does the new bit pattern represent?